This tome details imperial-of-the-art nutrition chamber systems incorporating methanol reformers as the onset of purified hydrogen (rather than compressed hydrogen). Onset with an overview of PEM nutrition cells, the tome discusses the various polytechnic approaches to methanol reforming and hydrogen purification. A in perfect accord review carried throughout the debate is the sound aspects of commercial applications that favor one polytechnic way over another. The reader gains an agreement of the chemistry, engineering, economics, and mechanism certification requirements that at the end of the day sculpture the optimal way for methanol nutrition chamber systems targeting commercial applications.